* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "xfs.h"
+#include "xfs_vnodeops.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_inode.h"
+
+/*
+ * And this gunk is needed for xfs_mount.h"
+ */
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dmapi.h"
+#include "xfs_inum.h"
+#include "xfs_ag.h"
+#include "xfs_mount.h"
-uint64_t vn_generation; /* vnode generation number */
-DEFINE_SPINLOCK(vnumber_lock);
/*
* Dedicated vnode inactive/reclaim sync semaphores.
*/
#define NVSYNC 37
#define vptosync(v) (&vsync[((unsigned long)v) % NVSYNC])
-STATIC wait_queue_head_t vsync[NVSYNC];
+static wait_queue_head_t vsync[NVSYNC];
void
vn_init(void)
void
vn_iowait(
- struct vnode *vp)
+ xfs_inode_t *ip)
{
- wait_queue_head_t *wq = vptosync(vp);
+ wait_queue_head_t *wq = vptosync(ip);
- wait_event(*wq, (atomic_read(&vp->v_iocount) == 0));
+ wait_event(*wq, (atomic_read(&ip->i_iocount) == 0));
}
void
vn_iowake(
- struct vnode *vp)
+ xfs_inode_t *ip)
{
- if (atomic_dec_and_test(&vp->v_iocount))
- wake_up(vptosync(vp));
+ if (atomic_dec_and_test(&ip->i_iocount))
+ wake_up(vptosync(ip));
}
-struct vnode *
+/*
+ * Volume managers supporting multiple paths can send back ENODEV when the
+ * final path disappears. In this case continuing to fill the page cache
+ * with dirty data which cannot be written out is evil, so prevent that.
+ */
+void
+vn_ioerror(
+ xfs_inode_t *ip,
+ int error,
+ char *f,
+ int l)
+{
+ if (unlikely(error == -ENODEV))
+ xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l);
+}
+
+bhv_vnode_t *
vn_initialize(
struct inode *inode)
{
- struct vnode *vp = vn_from_inode(inode);
+ bhv_vnode_t *vp = vn_from_inode(inode);
XFS_STATS_INC(vn_active);
XFS_STATS_INC(vn_alloc);
- vp->v_flag = VMODIFIED;
- spinlock_init(&vp->v_lock, "v_lock");
-
- spin_lock(&vnumber_lock);
- if (!++vn_generation) /* v_number shouldn't be zero */
- vn_generation++;
- vp->v_number = vn_generation;
- spin_unlock(&vnumber_lock);
-
ASSERT(VN_CACHED(vp) == 0);
- /* Initialize the first behavior and the behavior chain head. */
- vn_bhv_head_init(VN_BHV_HEAD(vp), "vnode");
-
- atomic_set(&vp->v_iocount, 0);
-
-#ifdef XFS_VNODE_TRACE
- vp->v_trace = ktrace_alloc(VNODE_TRACE_SIZE, KM_SLEEP);
-#endif /* XFS_VNODE_TRACE */
-
- vn_trace_exit(vp, __FUNCTION__, (inst_t *)__return_address);
return vp;
}
*/
void
vn_revalidate_core(
- struct vnode *vp,
- vattr_t *vap)
+ bhv_vnode_t *vp,
+ bhv_vattr_t *vap)
{
struct inode *inode = vn_to_inode(vp);
inode->i_blocks = vap->va_nblocks;
inode->i_mtime = vap->va_mtime;
inode->i_ctime = vap->va_ctime;
- inode->i_blksize = vap->va_blocksize;
if (vap->va_xflags & XFS_XFLAG_IMMUTABLE)
inode->i_flags |= S_IMMUTABLE;
else
*/
int
__vn_revalidate(
- struct vnode *vp,
- struct vattr *vattr)
+ bhv_vnode_t *vp,
+ bhv_vattr_t *vattr)
{
int error;
- vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
+ vn_trace_entry(xfs_vtoi(vp), __FUNCTION__, (inst_t *)__return_address);
vattr->va_mask = XFS_AT_STAT | XFS_AT_XFLAGS;
- VOP_GETATTR(vp, vattr, 0, NULL, error);
+ error = xfs_getattr(xfs_vtoi(vp), vattr, 0);
if (likely(!error)) {
vn_revalidate_core(vp, vattr);
- VUNMODIFY(vp);
+ xfs_iflags_clear(xfs_vtoi(vp), XFS_IMODIFIED);
}
return -error;
}
int
vn_revalidate(
- struct vnode *vp)
+ bhv_vnode_t *vp)
{
- vattr_t vattr;
+ bhv_vattr_t vattr;
return __vn_revalidate(vp, &vattr);
}
/*
* Add a reference to a referenced vnode.
*/
-struct vnode *
+bhv_vnode_t *
vn_hold(
- struct vnode *vp)
+ bhv_vnode_t *vp)
{
struct inode *inode;
XFS_STATS_INC(vn_hold);
- VN_LOCK(vp);
inode = igrab(vn_to_inode(vp));
ASSERT(inode);
- VN_UNLOCK(vp, 0);
return vp;
}
#ifdef XFS_VNODE_TRACE
-#define KTRACE_ENTER(vp, vk, s, line, ra) \
- ktrace_enter( (vp)->v_trace, \
+/*
+ * Reference count of Linux inode if present, -1 if the xfs_inode
+ * has no associated Linux inode.
+ */
+static inline int xfs_icount(struct xfs_inode *ip)
+{
+ bhv_vnode_t *vp = XFS_ITOV_NULL(ip);
+
+ if (vp)
+ return vn_count(vp);
+ return -1;
+}
+
+#define KTRACE_ENTER(ip, vk, s, line, ra) \
+ ktrace_enter( (ip)->i_trace, \
/* 0 */ (void *)(__psint_t)(vk), \
/* 1 */ (void *)(s), \
/* 2 */ (void *)(__psint_t) line, \
-/* 3 */ (void *)(__psint_t)(vn_count(vp)), \
+/* 3 */ (void *)(__psint_t)xfs_icount(ip), \
/* 4 */ (void *)(ra), \
-/* 5 */ (void *)(__psunsigned_t)(vp)->v_flag, \
+/* 5 */ NULL, \
/* 6 */ (void *)(__psint_t)current_cpu(), \
/* 7 */ (void *)(__psint_t)current_pid(), \
/* 8 */ (void *)__return_address, \
* Vnode tracing code.
*/
void
-vn_trace_entry(vnode_t *vp, const char *func, inst_t *ra)
+vn_trace_entry(xfs_inode_t *ip, const char *func, inst_t *ra)
{
- KTRACE_ENTER(vp, VNODE_KTRACE_ENTRY, func, 0, ra);
+ KTRACE_ENTER(ip, VNODE_KTRACE_ENTRY, func, 0, ra);
}
void
-vn_trace_exit(vnode_t *vp, const char *func, inst_t *ra)
+vn_trace_exit(xfs_inode_t *ip, const char *func, inst_t *ra)
{
- KTRACE_ENTER(vp, VNODE_KTRACE_EXIT, func, 0, ra);
+ KTRACE_ENTER(ip, VNODE_KTRACE_EXIT, func, 0, ra);
}
void
-vn_trace_hold(vnode_t *vp, char *file, int line, inst_t *ra)
+vn_trace_hold(xfs_inode_t *ip, char *file, int line, inst_t *ra)
{
- KTRACE_ENTER(vp, VNODE_KTRACE_HOLD, file, line, ra);
+ KTRACE_ENTER(ip, VNODE_KTRACE_HOLD, file, line, ra);
}
void
-vn_trace_ref(vnode_t *vp, char *file, int line, inst_t *ra)
+vn_trace_ref(xfs_inode_t *ip, char *file, int line, inst_t *ra)
{
- KTRACE_ENTER(vp, VNODE_KTRACE_REF, file, line, ra);
+ KTRACE_ENTER(ip, VNODE_KTRACE_REF, file, line, ra);
}
void
-vn_trace_rele(vnode_t *vp, char *file, int line, inst_t *ra)
+vn_trace_rele(xfs_inode_t *ip, char *file, int line, inst_t *ra)
{
- KTRACE_ENTER(vp, VNODE_KTRACE_RELE, file, line, ra);
+ KTRACE_ENTER(ip, VNODE_KTRACE_RELE, file, line, ra);
}
#endif /* XFS_VNODE_TRACE */
projects / linux-2.6 / blobdiff